Centrifugal machine rotor unbalance detection device
By designing a device for detecting the swing amplitude of the micro switch in the centrifuge and controlling the motor stop, the safety hazards caused by the unbalanced rotor of the centrifuge are solved, and timely shutdown and equipment protection are achieved.
Patent Information
- Application Number
- CN202421118988.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The centrifuge rotor is unbalanced during high-speed rotation, which may cause the rotor or sample to fly out, causing damage to the user, and the prior art is difficult to detect effectively and shut down in time.
A centrifuge rotor imbalance detection device is designed, using a rectangular bottom plate and a motor, and a bracket and a micro switch are installed on the bottom plate. The micro switch detects the swing amplitude when the motor is running. When the swing amplitude is greater than the critical value, the micro switch controls it. The motor stops.
It can stop the motor before the imbalance increases, avoid equipment damage, protect user safety, and reduce maintenance burden and cost.
Smart Images
Figure CN222469370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of centrifuges, in particular to a centrifuge rotor imbalance detection device. Background Art
[0002] Centrifuges are common laboratory equipment used to separate particles from solutions. The machine can separate these media based on size, shape, density, and viscosity. The separation process depends on the rotor speed. Separators are used in research and clinical settings, most commonly in chemistry, biochemistry, and molecular biology laboratories. Some of the most common applications include separation, purification, and isolation of organelles, cells, and cell components, as well as more complex mixtures of nucleic acids, proteins, and viruses for further observation by researchers. Since centrifuges are used with high-speed rotor rotation, once the high-speed rotating rotor is unbalanced, the rotor or sample may fly out of the centrifuge, causing harm to the user, so it is particularly important to detect rotor imbalance and shut down the centrifuge in time. Utility Model Content
[0003] The purpose of the utility model is to provide a centrifuge rotor imbalance detection device to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifuge rotor imbalance detection device, comprising a rectangular base plate and a motor, wherein the four bottom corners of the rectangular base plate are provided with supporting feet, the lower end of the motor is provided with a lower end cover, and the lower end cover is fixedly installed with the base plate, and a bracket is installed on the upper surface of the base plate near the motor side, and a micro switch is installed on the side of the bracket, and the micro switch is used to detect the swing amplitude of the motor when the motor is running. When the swing amplitude is greater than a critical value, the micro switch controls the motor to stop.
[0005] Preferably, the bottom plate is provided with a plurality of groups of strip-shaped heat dissipation holes.
[0006] Compared with the prior art, the utility model has the following beneficial effects: the micro switch is used to detect the swing degree of the motor during operation, and the motor can be stopped before the imbalance intensifies, so as to avoid the motor still running when the imbalance is not detected, thereby protecting the centrifuge from damage. In addition, the device has a simple structure, is easy to maintain, and has a low cost, and can timely protect the machine from damage, thereby reducing the maintenance burden and maintenance cost of the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0008] Figure 2 It is a structural schematic diagram of the micro switch of the utility model.
[0009] In the figure: 1. Base plate; 2. Motor; 3. Lower end cover; 4. Bracket; 5. Micro switch; 6. Heat dissipation hole; 7. Support foot. DETAILED DESCRIPTION
[0010] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0011] See also Figure 1-2 The utility model provides a technical solution: a centrifuge rotor imbalance detection device, comprising a rectangular bottom plate 1 and a motor 2, wherein support feet 7 are installed at the four corners of the bottom of the rectangular bottom plate 1, and a plurality of strip-shaped heat dissipation holes 6 are provided on the bottom plate 1. A lower end cover 3 is provided at the lower end of the motor 2, and the lower end cover 3 is fixedly installed with the bottom plate 1. A bracket 4 is installed on the upper surface of the bottom plate 1 near the motor 2, and a micro switch 5 is installed on the side of the bracket 4. The micro switch 5 is used to detect the swing amplitude of the motor 2 when the motor 2 is running. When the swing amplitude is greater than a critical value, the micro switch 5 controls the motor 2 to stop.
[0012] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A centrifuge rotor imbalance detection device, comprising a rectangular bottom plate (1) and a motor (2), wherein support feet (7) are installed at the four corners of the bottom of the rectangular bottom plate (1), and characterized in that: A lower end cover (3) is provided at the lower end of the motor (2), and the lower end cover (3) is fixedly mounted on the bottom plate (1). A bracket (4) is mounted on the upper surface of the bottom plate (1) on a side close to the motor (2), and a micro switch (5) is mounted on the side of the bracket (4). The micro switch (5) is used to detect the swing amplitude of the motor (2) when it is running. When the swing amplitude is greater than a critical value, the micro switch (5) controls the motor (2) to stop.
2. The centrifuge rotor imbalance detection device according to claim 1, characterized in that: The bottom plate (1) is provided with a plurality of groups of strip-shaped heat dissipation holes (6).